Home / 1,086,370.20-1,629,617.61-287,631

Finding the Fourth Proportional to 1,086,370.20, 1,629,617.61 and 287,631

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Solution

The fourth proportional to 1,086,370.20, 1,629,617.61 and 287,631 is: 431,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,370.20 : 1,629,617.61 = 287,631 : x
  2. Step 2: Convert to fraction form
    1,086,370.20/1,629,617.61 = 287,631/x
  3. Step 3: Cross multiply
    1,086,370.20x = 1,629,617.61 × 287,631
  4. Step 4: Simplify right side
    1,086,370.20x = 468,728,542,781.91
  5. Step 5: Solve for x
    x = 468,728,542,781.91/1,086,370.20
  6. Step 6: Final answer
    x = 431,463.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.